CHM 2210C Chapter 1 Sample test Name: ____Answers_______

Part B Dot Structures of Molecules 20 points

Using a periodic chart draw the electron dot structures of the following molecules:

(Choose One for each question or the one circled on the paper)

You may practice your drawing by dragging and dropping the atoms on the Internet at: http://www.fccj.us/chem1001/dragdrop/menu.html

1. NH₃ CH₄ H₂O₂ H₂O 2. H₂SO₄ H₃PO₄ HCl HClO

Ammonia Sulfuric Acid

Methane Phosphoric Acid

hydrogen peroxide Perchloric Acid

water Chloric Acid

3. HNO₃ H₂CO₃ HNO₂ 4. CO₂ HCN SO₂ SO₃

Nitric Acid Carbon Dioxide

Carbonic Acid Hydrogen Cyanide

Nitrous Acid Silicon Dioxide

Sulfur Trioxide

5. HC₂H₃O₂ H₂C₂O₄ HCHO₂ 6. C₂H₄ C₂H₂ C₃H₈ C₂H₆

carbon to carbon by single covalent bond

Acetic Acid Ethylene

Oxalic Acid Acetylene

Formic Acid Propane

Ethane

7. CH₂O CH₃COCH₃ CH₃CH₂OH 8. CH₃OCH₃ CHONH₂

7. Formaldehyde

Acetone

Glycine

8. Dimethyl Ether

Metanamide

Ethyl Acetate

9. CH₂NH₂COOH 10. CH₃COOCH₂CH₃